Liquid dispensing apparatus



Dec. 7, 1937. w, M. CARROLL 2,101,806

LIQUID DISPENSING APPARATUS Filed Feb. 1.6, 1935 4 Sheets-Sheet l i E IQ l E 5;* MCU'VQ.

. of@ mova Dec. 7, 1937. w. M, CARROLL LIQUID DISPENS ING APPARATUS Filed Feb. 16, 1935 4 Sheets-Sheet 2 Dec. 7, 1937. w, M. CARROLL 2,101,806

LIQUID DISPENS ING APPARATUS Filed Feb, 16, 1935 4 Sheets-Sheet 3 sa 15B 7, 1937. w. M. CARROLL LIQUID DISPENSING APPARATUS 4 Sheets-Sheet 4 Filed Feb. 16, 1935 Us #l 77m/ Patented Dec. 7, 1937 UNITED STATES PATENT OFFICE 2,101,806 LIQUID hDISPENSING APPARATUS Application February 16, 1935, Serial No. 6,779

27 Claims.

This invention relates to liquid dispensing devices including pump mechanisms i'or dispensing gasoline and more particularly to means for compelling the resetting of the hands of the clock mechanism prior to a dispensing operation.

One of the objects of my present invention is to provide a simple means for insuring that the indicating hands of the clock which is operated by the meter or liquid measuring device are at zero as a condition precedent to the dispensing of liquid; another object of my invention resides in the provision of a simple device for interlocking the resetting mechanism with a support for the nozzle in such a manner that dispensing cannot be initiated by the nozzle control without first resetting the clock hands; another object of my invention resides broadly in the provision of means for preventing the operation of the nozzle valve lever until resetting has taken place; yet another g@ object of my invention resides in the provision of means for preventing the removal of the nozzleA from its support unless the resetting has taken place; ye't another object of my invention is the provision ol means for preventing the nozzle being removed from its support and also preventing the operation of the nozzle lever until resetting has taken place; another object of my invention resides. in providing a Construction wherein means for resetting the clock hands automatically acts to permit either the nozzle being removed from its support or the operation of the nozzle valve lever or both; yet another object of my invention resides in the simple type of interlock between a manually operated resetting mechanism and means for locking the nozzle valve in nonliquid dispensing position; yet another object of my invention resides in the provision o a new type of a nozzle support for the dispensing hose which comprises a plurality of portions adapted to'support the hose, and one of which portions is shiftable relatively to the other to permit the positioning of the nozzle on its support or the removal of the nozzle from its support, and which also has a means connected switch and/or a delivery valve. As an ancillary feature of this aspect of my invention, means is also provided "for locking and/or automatically locking `the nozzle valve lever from operation when it is installed in hose-supporting position on its support. y

These and other objects ofjrny invention will be apparent from a perusal of the 'specication when taken in connection with the drawings 5 wherein l l thereto for controlling the operation of the pump f (Cl. 221--95l Fig. 1 is a view partly in section of one type of my reset interlock;

Fig. 2 is a fragmentary view showing parts in a second position;

Figs. 3 and 4 are corresponding views of different movements of the controlling cam for operating the resetting mechanism;

Fig. 5 is a side view showing the nozzle in supported position;

Fig. 6 is a section on the line 6 6 of Fig. 5;

Fig. 7 is a perspective View showing the locking means for padlocking the nozzle valve lever in inoperative position;

Figs. 8 and 9 are views respectively on lines 8 8 and 9--9 of Fig. 7;

Figs. l0 and 11 are views of the reset mechanism of the clock; and

Fig. 12 is a perspective view of a dispensing device embodying my invention.

Referring now to the drawings more in detail, my invention comprises any type of liquid dispensing mechanism preferably a liquid dispensing mechanism for gasoline, which includes the usual housing 2 containing the usual dispensing elements such as the motor driven pump not shown, the dispensing line which is adapted to connect at one end with a gasoline-containing reservoir and at the other end with the pump. The pump, in turn, through its dispensing line, discharges into a suitable type of liquid measuring device 3, preferably of the volumetric dis-.

placement meter type and thence through the usual sight-glass and thence through the dispensing hose which is at the present time provided with a valve-controlled delivery nozzle. It is understood that suitable devices such as an air separator may be housed within the housing 2 in the liquid dispensing line in advance of the meter.

My present invention contemplates the utilization of some type of measuring device wherein as the liquid is measured or metered, indicating hands of some type of clock mechanism are operated to visually indicate the amount of liquid dispensed as shown for instance in the patent to Goss, 1,953,598 of April 3, 1934 and the patent to Jauch, 1,888,533 of November 22, 1932.

Thisinvention also contemplates appropriate mechanism for resetting these clock hands back to zero after a dispensing operation so that a correct indication of a subsequent dispensing operation by the meter and clock will be afforded. Any type of meter and clock mechanism maybe provided, but l prefer a clock mechanismA illustrated in Figs. 10, and 11, and 12 of the drawings and hereinafter described.

For .the sake of brevity pf illustration and description, it is suicient to say that upon the rotation of a predetermined amount and in predetermined directions of a resetting shaft, the clock hands will be restored to zero setting.

In my present invention I have shown the housing 2 as provided with a support for the nozzle when not in use and also I have shown the housing as provided with a nozzle-receiving housing 4 disposed above the nozzle support and arranged to receive the nozzle end when the nozzle is on its support. In addition, I have shown the housing 2 as provided with an exteriorly located means for operating the resetl mechanism preferably comprising in the present instance, a handoperated crank 4 adapted to turn the reset shaft 6.

In the present instance I have modified the reset shaft to provide an interlock between it and the nozzle support. The nozzle support at present4 comprises a plurality of members which, when moved to locking position, serve to lock-the nozzle valve stationarily on its support and in fixed position relative to the housing and also serve to prevent dispensing operation of the nozzle valve lever. In unlocked position, one of the members of the nozzle valve support will move or can be manually moved relatively to the other whereby to permit the removal of the nozzle valve from its support and also so that the nozzle valve lever can be operated for the dispensing operation. In one of the embodiments of this nozzle valve support, the plurality of members serve to support the nozzle valve thereon while in another embodiment one of the plurality of supports alone supports they nozzle valve and the other support, which is movable relatively thereto, functions in cooperation with the rst, as a means for not only locking the nozzle Valve on its support, but also for locking the nozzle valve lever from operation. By referrirg to the drawings in the embodiment shown in Figs. 6 and '7, the nozzle valve support comprises a bracket 8 which is stationarily xed to the housing by means of rivets, welding or the like, and this bracket 8 projects outwardly from the housing to provide a shelf-like member IIJ terminating at its outer end in a substantially semi-circular or curved end I2 adapted to embrace a portion of the nozzle barrel.

On its upper surface and substantially midway thereof, the arm Il) is provided with a substantially horizontal lug clearly in Fig. 6, is spaced'from the arm I0 so that the guard I6 of the nozzle may pass freely thereunder by means of a lateral movement. The member II) is provided with a depending arm-like portion I8 terminating in an inwardly extending locking lug 2li provided with a perforation to receive the hasp of a padlock. The nozzle support also comprises a second bracket or arm-like member 22 which, as shown in Fig. 2, extends outwardly and terminates in a curved portion 24 reversely located and corresponding to the curved portion I2 of the bracket armA I Il. If desired, the arm 22 may or may not be provided with an upstanding lug 26 corresponding to iii-.c lug I4 and adapted to register therewith when the two arms are brought to closed position as shown in Fig. 1. The purpose of this lug 26 is to prevent any sidewise or lateral movement of the guard portion of the nozzle valve when in locked position, as shown in Fig. 1, The nozzle I4 which, as shown is provided with the usual valve 28 and the usual 1 valve-operating lever 30 which is adapted to be pushed inwardly toward the barrel of the nozzle in order to open the nozzle valve for the dispensing operation.

When the nozzle is placed on its support, as in Figs. 1 and 5, the guard will rest on the two supporting arms IIJ and 22 with the hose 32 of the nozzle encircled by the curved portions I2 and 24 of the arms I 8 and 22 respectively, and the nozzle guard I6 will underlie the keeper or ledge I4 with the nozzle valve lever 30 disposed in front of this keeper or abutmentor locking means I4, i. e., the locking means I4 will lie between the normally closed position of the nozzle valve lever 30 and the nozzle valve barrel 28 so that it will be impossible to press the nozzle valve 30 to a position to open the valve and cause dispensing.

In addition, the arm 22 is provided with a dependingrportion 34 which terminates in an inwardly extending lug 36 which registers with a similar inwardly extending lug which is perforated to receive the padlock for locking the two arms in position as shown in Fig. 6. The arm 22 is formed at its inner end with a head 38 which has originally welded or fastened thereto a preferably L-shaped arm or bracket 40 pivotally mounted as at 42 to a bracket 44 mounted in the inside of the housing 2 in any suitable manner so that the arm 22 may swing from the position shown in Figr 1, which is the normally locked position, to the position shown in Figure 2, in which position the nozzle may be removed from the support. In the embodiment illustrated in Figs. 1 and 2, the inner end of this swinging arm 22 is provided with a latch or locking member adapted to interlock with the member operated by the resetting mechanism and it is preferably provided with means for automatically swinging the arm 22 to unlocked or outward position shown in Fig.- 2 when the latching mechanism is released by operation of the reset mechanism. In other features of my invention, hereinafter described, this nozzle supporting arm 22 may likewise be provided, but is preferably not so provided, with a connectionA to either the pump mechanism or to the delivery valve or to both. However, it is expressly understood that in the embodiment shown in Figs. 1 and 2 of the present invention, means for starting and stopping the pump and/or the delivery valve is operable by a separate land independent member so that there is no connection between the reset mechanism and the nozzle valve control and the pump or delivery valve.

In the form of my invention disclosed in Figs. 8 and 9, the nozzle support comprises a preferably stationary arm 46 rigidly secured to the side of the housing so as to project outwardly therefrom as shown in Fig. 9, and this arm 46 terminates in the curved portion 48 adapted to embrace the nozzle hose 32. In this form the arm 46 is provided with a basal horizontal portion 50 which is broad enough to receive the entire width of the nozzle guard so as to really support the same thereon. In addition, the arm 46 is provided with an upstanding ange which is slotted as at 52.

The pivotally mounted member or arm 54 is likewise provided with 'a curved terminal 56 to embrace the hose 32. This arm 54 is provided substantially midway its length with a horizontally extending lug or abutment- 58 which in open position, as shown at Fig. 9, is adapted to swing clear of the arm 46 so that the nozzle can be placed directly thereon without interference. In

` the depending vertical wall portions ofthe arms '84 of the stationary bracket 44.

closed position, as shown in Fig. 8, the lug 58 will pass-into the slot 52, and immediately behind the nozzle valve operating'lever 3 0A whereby to hold thislever- 30 from operation. The arm 54 is pivoted as at 60 to anydesirable bracket member 62 or other part rigidly connected to the inner wall of the housing. As shown in Fig. 8,

46 and 54 are'provided with .extensions 64 and 66 which are further provided with registering perforations 68 when the arms are in closed position, as shown in Fig. 8 to receive a padlock or other fastening device whereby tolock said-arm in closed position and whereby to hold the nozzle in stationary position with respect tothe housing and whereby also to hold the nozzle valve lever in operative position. In either form of the invention the swinging arm portion of the support is interlockingly connected to thereset mechanism. In the illustrated embodiment ofv the-invention,^the reset shaft 6 is provided with a segmentv 10 xed thereto, which segment is provided with a substantially semicircular slot 12 in which rides the cross pin 14 carried by a member or arm T6 having threaded connection with the rod 18' which, in turn, is pivotally connected to a substantially L-shaped latch 80 pivotally mounted as at 82 on an arm Latch 80 is provided with a latching portion 86 adaptedto lockingly engage behind the cooperating latching arm 88 on the L-shaped arm 40 oi the pivot member 22 of the nozzle support.

When the control handle 4a of the. reset mechanism is rotated to resetthe clock, the pin 14 willridein the slot 12 for a distance sufficient to insure the clockhands being at zero at which '.point the end of the slot 'I2 will have contacted the pin T4 and the latch 86 willbe withdrawn, thus unlocking the hinged member 22- allowing it to open underthe urging of the spring 80 which is,

. connected to arm 40-and to a stationary member 92. When the latch 86 is withdrawnfrom its Aco-operating hinged member 40 on the arm 2 2, the

' latch 80 will be moved a sui'iicientA distance to cause the point 94 at which a spring 96 is fastened,

the vother end of the `spring being 'fastened at 88, to a stationary ear on the stationary bracket 44, to snap over the center and thus maintain the latch 86 in a disabled position until the control handle 4a is returned to normal or oil' position,

at which moment the hose .can then'be returned and the hinged member or movable arm 22 can be manually swung intol position where it will be f locked by latch 86 engaging behind the cooperat- A ing latch 88. If the nozzle h-as been placed upon its support prior to the movement oi the arm- 22. into closed position with respect to the stationary arm I0 it will then be impossible to removerthe nozzle from its support, as shown in Fig. 1, without rst resetting'the clock hands.

As shown clearly in Figs. and 7, the members |0 and 22 at Ytheir outer extremities. are sloped instance, and jI may connect the'movable arm 22,

as shown in Fig. 2, or the movable arm 54 as shown in Fig. 9, to a member adapted to actuate the switch for the motor-operated pump, or any inoperative.

ner Well known in the art.

iothe'r type of liquid forcing means, or alternatively to a delivery valve in the liquid iiow line and in such a manner that the pump is rendered inoperative when the arm 22 or arm 54 is moved to a closed position as shown in Figs. l and 9, and alternatively the'pump is rendered operative, or in the on position, when the arm A24 or 54 is moved to the position shown in Figs. 2 and 9. In order to accomplish this I connect the inner portion' of the arm 22 or 54 by means of a rod |03 to a bell -crank lever` |04, in turn connecting to rod |05. This latter connects with the usual type of switch |06, whichcontrols the circuit for the electric motor which operates the pump, the switch being arranged so thatwhen the arm is released and swung by spring 90 to open position, as in Figs. 2 and 9, the pump will be operative. while when the arm is manually swung to closed position, as shown in Fig. 1, the pump will be Any t`ype of delay mechanism can be put in this connection so as to` assure the pump being closed or opened simultaneously with the movement of the arm or so that the pump may be started slightly in advance of the opening of the arm and stopped slightly in advance oi the closingA of the arm. -Such delay mechanism is s hown in the patent to Stedwell, 1,713,102, of May 14,1929.

With reference to Figs. 1, 10, and 11 of the drawings, the control handle 4a is provided, on its inner end, with va lug I0, which in a predetermined angular position of the handle, is'adapted to register with a slot ||2 formed in the walls of 'a sleeve I |4 carried by the housing 2 (see Figs. 1 and 11).` There are preferablyl two of such slots ||2 disposed diametrically opposite each other. Registration of the lug ||0 with the slot ||2 permits the handle to be held in a stationary position as shown in lFigure 11. When resetting occurs, the handlev4a is pushed inwardly against the tension of the spring ||6 and it also disengages the lug ||0 from slot I2 which permits the handle 4a to revolve the resetting shaft 6 in order to set the dial hands back to a zero position, (see Figs. v1 and 10). Endwise movement of this shafts carries inwardly a collar ||8 aii'ixed to its inner end. This collar carries a spring-pressed plunger or pawl |20, which, when the collar is moved to innermost position, engages with ratchet teeth |22 on the side face of a corresponding collar |24 on the end of a shaft |26 carrying a sprocket |28, having a chain |30 meshing with a smaller sprocket |32 on shaft |34. This shaft |34 in turn is provided with a bevel gear |36 meshing with another gear |38, which is mounted on shaft |40, and rotates it by means of a spring friction collar |'4|. Shaft |40 carries a worm |42. which meshes with a worm gear |44, on a shaft |46. In addition, the bevel gear |38 meshes with another bevel gear |48 on a shaft|50. The shafts |46 and |50 are operative to drive the fast and slow hands |52 andl |54 respectively when resetting in a man- When the control handle is pushed in causing the lug |0 to be disengaged from the slot ||2, the distance traveled by shaft 6 to fully disengage said lug from the slot, is sufiicient to insure engagement of the ratchet pin |20 with the ratchet |22 so that any movement of the handle in a clockwise direction, Fig. 11, will act to reset the indicators. Another slot, identical 'to slot H2, should be shown in the xed sleeve ||4 spaced 180 from the slot l2. Obviously, when shaft 6 has been rotated 180 to cause resetting and to unlock the nozzle, the lug ||0 will drop into the new slot under the urging of spring IIS, and ratchet pin 420 will be disengaged from the ratchet 822.

In view of the fact that indicators are set back to zero and not forward, it is immaterial whether the indicators are only partially or completely reset by repeatedly rocking the control handle through a small arc. The point is that the ratio between shafts 6 and i34is such that if the handle is rotated to the full extent of the travel, said travel is more than suiicient to insure indicators being back to zero. Therefore, since the end of the slot 12 of the cam 10 does not act on the latch 88 until shaft 6 has been rotated a suilicient distance to insure hands being back to zero, the hose nozzle is locked in a position on its support until after zeroizin'g has been accomplished.

Changes may be made in the form, construction and arrangement of the parts .without departing from the spirit of the invention or sacrificing any of its advantages, and the right is hereby reserved to make all such changes as fairly fall within the scope of the following claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a control device for a liquid dispensing system, in combination, a liquid dispensing nozzle provided with a nozzle valve having an actuatable 30 .control member, liquid measuring means in the dispensing system, movable indicating means adapted to move from an initial predetermined position to indicate liquid dispensed, reset mechanism for resetting the indicating means to initial position, supporting means for the nozzle when not in use including relatively movable members having means for locking the nozzle valve actuating means in inoperative position when the nozzle is on its supporting means. and means interconnecting the reset mechanism with the movable one of said relatively movable members including means for preventing the unlocking of said nozzle valve actuating means until actuation of the reset mechanism.

2. In a control device for liquid dispensing apparatus, the combination of a meter having a registering mechanism, means for resetting the mechanism to zero position, means for delivering liquid through the meter, said meter having a liquid discharge terminating in a nozzle, said nozzle having a valve provided with a manually actuatable member, a support for the nozzle when not in use, including shiftable nozzle support means adapted to be shifted to and from a position to prevent operative-movement of the manually actuatable member for the valve when the nozzle is on the support and not in use, and xreans operatively connected to said shiftable means and to said resetting mechanism for preventing the shifting of said shiftable means from preventing position until the meter registering mechanism is in zero reset position.

3. In a control device for a dispensing apparatus the combination of a meter, a register for the meter, mechanism for resetting the register to zero position, means for delivering liquid through the meter, said meter having a liquid discharge, a nozzle for said discharge, a valve for said nozzle, and x a shiftable control member for the valve, means for locking said shiftable control member, and means connected with the resetting mechanism for preventing unlocking of said locking means until the meter resetting mechanism has been reset to zero position.

4. In a control device for dispensing apparatus, the combination of a meter, a register for the meter, mechanism for resetting the register to Zero position, means for delivering liquid to the meter, a discharge conduit connected with said meter and comprising a nozzle Valve and anactuating member therefor, a locking member, said 'actuating and locking members cooperating when occupying predetermined relative positions, to prevent actuation of said nozzle valve, releasable latching means adapted to retain the members in said predetermined relation, releasing means connected to operate said latching means and connected to be operated by said resetting mechanism and being effective at the completion of operation of said resetting mechanism to release said latching means.

5. In a control device for a liquid dispensingv apparatus, the combination of a meter, a register therefor, reset mechanism for said register, and a liquid dispensing nozzle provided with a valve and an actuator for the valve, a support for the nozzle when not in use, said support being formed with a projection adapted to lock the nozzle valve actuator against operation when the nozzle is on the support, latching means movable into cooperating relation with the support to prevent removal of the nozzle therefrom and serving thereby to prevent operation of the valve actuator, means actuated by the reset mechanism for releasing said latching means for movement out of cooperating relation-with said support when the register is reset.

6. In a control device for a liquid dispensing apparatus, the combination of a meter, a register therefor having a reset mechanism, said apparatus having a liquid dispensing line through which the liquid is adapted to be dispensed, said line terminating in a nozzle provided with a valve having an actuatable control member, a support for the nozzle when not in use, and means for preventing operation of the nozzle valve actuator when the nozzle is on its support, means for locking said preventing means in operation preventing position, and means actuated by the reset mechanism for releasing said preventing means. 7. In a control device for a liquid dispensing apparatus, the combination of a meter, a register therefor having a reset mechanism, said apparatus having a liquid dispensing line through which the liquid is adapted to be dispensed, said line terminating in a nozzle provided with a valve having an actuatable control member, a support for the nozzle when not in use including members movable relative to each other to and from a position forpreventing actuation of the nozzle valve actuator, means for holding said members in actuation preventing position, and means connected With the reset mechanism for releasing said holding means when said reset mechanism is operated to permit relative motion of said members from actuation preventing position.

8. In a control device for a liquid dispensing port having means for supporting the nozzle when it is not in use and supporting the major portion of said nozzle on said support Wholly outside of said housing, said supporting means including a stationary member and a member movable relatively to the stationarymember, rsaid movable member including a portion adapted to be moved into position to prevent removal of the nozzle from the support and to prevent opration of the nozzle valve actuator.

10. In a control device for a liquid dispensing device having a housing and a dispensing line including a hose terminating in a nozzle through which liquid is adapted to be forced under pressure, a valve for the nozzle, and a valve actuating member, a support for the nozzle when not in use comprising a stationary member extending outwardly from the housing and providing a substantially horizontal ledge on which the nozzle may be freely placed, and means including a member pivotally mounted on said housing to swing toward and from said stationary member, said pivoted member having a locking lug adapted in one position of the movable member to swing clear of the stationary member to permit free positioning of the nozzle on said stationaryl member and adapted in another position to move toward said stationary member and into position to lock the nozzle valve actuator in inoperative position.

11. In a control device for a liquid dispensing device in combination with a dispensing line including a hose terminating in a nozzle through which liquid is adapted to be forced under pressure, a pump, switch mechanism for the pump, a valve for the nozzle, a valve actuating member, a support for the nozzle when not in use comprising a stationary member extending outwardly from the dispensing device and providing a substantially horizontal ledge on which the nozzle may be freely placed, means including a member pivotally mounted on said dispensing device to swing toward and from said stationary member, said pivoted member having a locking lug adapted in one position of the pivoted member to swing clear of the stationarynmember to permit free pol sitioning of the nozzle on said stationary member and adapted in another position to move toward said stationary member and into posi- `tion to lock the nozzle valve actuator in inoperative position, and means for connecting said pivoted member to operate the pump switch mechanism as said member pivots.

12. In a, control device for a liquid dispensing apparatus, the combination of a liquid dispensing line including a hose, a meter in said line, said meter having a register, reset mechanism for said register, said line terminating in a nozzle provided with a valve and a valve controlling member, a support for the nozzle when not in use, a reset shaft cooperating with the reset mechanism having an actuating member, said support for the nozzle including two relatively movable members adapted when in closed position to lock the nozzle on its support and to lock the nozzle valve controlling member from operation, latching means for locking said relatively movable support members in closed position, and cooperative latching means actuatably connected to the reset shaft whereby upon actuation of the reset shaft said latching means will be released, and spring means for thereupon causing relative opening movement of said relatively movable members whereby to permit removal of the nozzle and whereby to unlock the valve controlling member.

13. In a control device for a liquid delivery apparatus, the combination of means forming a dispensing line, means for controlling the passage of liquid through said line, a nozzle having a valve provided with a control member, a support for the nozzle when not in use-comprising a stationary portion and a portion movable to positions in which it renders the support capable or incapable of supporting the nozzle, means interconnecting the movable portion with the flow control means, said means including mechanism whereby the flow control means is rendered operative when the movable portion is moved to the position in which the nozzle support is incapable of supporting the nozzle.

14. In a. control device for dispensing apparatus, comprising a dispensing line including a hose terminating in a nozzle which is provided with a valve and a valve control member, the combination of a meter controlled register, a resetting mechanism for the register, a support for the nozzle comprising a locking member adapted to engage and prevent operation of said control member when the nozzle is on the support and latching means operable to and froma position to cooperate with said support to prevent removal oi the nozzle therefrom and the consequent disengagement of said locking and control members, connections between said resetting mechanism and said latching means for operating the latter at the conclusion of the resetting operation from cooperative position with respect to said support.

15. Ina control mechanism for a dispensing apparatus, the combination of a meter controlled register having a resetting mechanism, said apparatus having a dispensing line terminating in a nozzle provided with a valve and a valve actuating mechanism, means for preventing operation of said actuating mechanism, said means comprising a member movable to locking position relative to said actuating mechanism and means for retaining said member in locking position, means for releasing said retaing means comprising a slotted member connected to be moved by said resetting mechanism and a follower adapted to ride in said slot, said slot being so proportioned that the follower will ride therein during resetting but will be contacted and operated by an end Wall of the slot after resetting is complete, to release said retaining means.

16. In a control device for dispensing apparatus comprising a resettable register, means for resetting the register, and a dispensing line terminating in a nozzle, the combination of a twopart nozzle support, the parts of which are relatively movable to receive and retain said nozzle therebetween, a latch to maintain the parts against relative movement, means for withdrawing the latch, an operator which is movable to engage and completely operate the resetting means and means for thereafter connecting said operator to actuate the withdrawing means.

17. In a hose and nozzle locking support having stationary and pivoted supporting portions, a lug on the pivoted portion, a pivoted latch, an over-center spring for holding said latch either in or out of engagement with said lug, and means for moving the latch to either of its positions.

18. In a hose and nozzle locking support having stationary and pivoted supporting portions, a latch means on said pivoted portion to cooperate with said latch to retain said portions in nozzle locking and supporting position, and means for disconnecting said first named means and said latch to permit pivoting of said pivoted portion to free said nozzle.

19. In a hose and nozzle locking support having stationary andpivoted supporting portions, latching means for preventing pivoting of said pivoted portion to non-supporting position and means for rendering said latching means ineiective.

20. In a hose and nozzle locking support having stationary and pivoted supporting portions, latching means for preventing pivoting of said pivoted portion to non-supporting position, means for rendering said latching means ineffective and means adapted to receive additional locking means to prevent pivoting of said pivoted portion irrespective of the effectiveness of said latching means.

21. In a hose and nozzle locking support having stationary and pivoted supporting portions, latching means for preventing pivoting of said pivoted portiotn to non-supporting position, means for rendering said latching means ineiective, said supporting portions being provided with projections for locking a nozzle in supported position and for preventing operation of valve control mechanisms incorporated in the nozzle.

22. In a hose and nozzle locking support having stationary and pivoted supporting and locking portions, latching means for preventing pivoting of said pivoted portion to non-supporting position, means for rendering said latching means ineiective, resilient means effective when said latching means is rendered ineiective, to pivot said pivoted portion and means connecting said latter portion to operate a switch as it pivots.

23. In a hook for supporting and locking a dispensing hose provided with a nozzle having a valve operator and a guard therefor, two relatively movable cooperating hook elements each provided with complementary projections so arranged that when said elements are in supporting position with respect to said hose and guard, said complementary projections prevent removal of said nozzle and an'additional projection on one of the elements prevents operation of the valve operator.

24. In a hook for supporting and locking a dispensing hose provided with a nozzle having a valve operator and a guard therefor, two elements movable relative to each other to hose and nozzle engaging or releasing positions, said elements being provided with projections which embrace said hose and guard and which block operation of said valve operator when the elements are in engaging position and which provide no support for the hose and nozzle when the elements are in releasing position.

25. In a control device for a dispensing apparatus comprising a resettable meter controlled register, resetting mechanism for said register and a dispensing line comprising a nozzle provided with a control valve and actuator therefor, the combination of a two part nozzle, engaging support adapted to be locked in supporting position or unlocked and moved to nonsupporting position, mechanism for locking and unlocking said support, an actuator for both of said mechanisms comprising an axially displaceable and rotatable shaft, means to compel axial displacement to precede rotation, means to establish connection between said shaft and resetting mechanism uponv said axial displacement so that succeeding rotation of the shaft in one direction will operate said resetting mechanism, and means for connecting the shaft to operate said locking and unlocking mechanism to unlock said support during the latter part of said rotation, said last named means serving upon rotation of said shaft in the opposite direction to condition said locking mechanism to lock said support when said parts are moved to nozzle engaging position.

26. In a control mechanism for a dispensing apparatus, the combination of a register, means for resetting said register, a flow line, means operable to produce a flow of liquid in said line, a nozzle locking mechanism, connections for causing said flow producing means to be operated by said locking mechanism, means operated by the resetting means after a resetting operation for unlocking said nozzle locking mechanism to operate said flow producing means, said resetting means being operable upon return to initial position to condition said nozzle locking mechanism for locking said nozzle and for rendering said ilow producing mechanism inoperative.

27. In a control mechanism for dispensing apparatus, the combination of a register, a resetting mechanism therefor, a driver movable from normal position to operate the resetting mechanism, said apparatus having a dispensing line terminating in a nozzle provided with a valve and a valve actuating mechanism, means for preventing operation of said actuating mechanism comprising a member movable to locking position relative to said actuating mechanism and means for retaining said member in locking position, a slotted member connected to be operated by said driver, a follower in said slot and connected with said retaining means, said Slot being proportioned so that the follower will ride idly therein during the greater part of the motion of said driver but will be operated by an end wall of the slot during the nal motion of the driver from normal position, to release said retaining means and will be operated by the opposite end wall of the'slot during the final motion of the driver to normal position, to condition the retaining means to retain said locking member.

WILLIAM M. CARROLL. 

